Title: Application of process modeling to improve the competitiveness of investment castings
Abstract: The aerospace and automotive industries are the largest users of computer‐aided design, engineering, and manufacturing (CAD/CAM) systems for designing and manufacturing component parts. Many producers of metal castings are adopting the technology to strengthen business relationships with their aerospace and automotive OEM customers by reducing new product development times, improving yields of existing processes, and reducing costs. One key limitation of the technology is that the accuracies of even the basic heat and fluid flow models must be enhanced by improving the input property databases for the many commercial casting alloys of interest. Accurate models require accurate input thermophysical and related property data such as thermal conductivity, specific heat, latent heat, density, surface tension, emissivity, viscosity, and contact conductance between the metal and the mold. This paper describes the economic impacts of the casting industry and how CAD/CAE/CAM technology is revolutionizing business practices in foundries. A specific example of an CAE model of a production investment casting will be presented. In addition, the commercial potential of low‐g measurements of key thermophysical properties will be discussed.
Publication Year: 1996
Publication Date: 1996-01-01
Language: en
Type: article
Indexed In: ['crossref']
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